Ultrasonic Characterization of Solid Renal Lesions: Echographic, Angiographic and Pathologic Correlation

Abstract

Seventy-two patients with solid renal lesions were studied by renal echography and the results were correlated with angiography and pathologic examination of excised specimens. Thirty-one tumors were diagnosed by echography and were proved by angiography and pathology. Renal tumors are more echo producing or less echogenic than adjacent normal renal parenchyma. All angiographically hypervascular tumors and hypovascular tumors with areas of hemorrhage and necrosis are more echo producing. Hypovascular homogeneous renal carcinomas, transitional cell carcinoma invading the kidney and metastases are less echo producing. Pseudotumors have the same echo characteristics as surrounding and adjacent normal renal parenchyma.